Electric water heater



Nov. 17,1925. 1,562,293

G. R. CONKLIN ELECTRIC WATER HEATER Filed July 25, 1924 j f@ ATTORNEY.

Patented N ov. 17, 1935.

A nutren stares initio GEORGE R. ONKLIN, 0E MEAML FLORIDA, ASSIGHGP.- 0FFIFTY-GNE PER CENT TO MOMAN PRUIETT, ONE-FOURTH Tl ORBA' C. PATTERSON,AND TYENTY-FOUR :PER CENT TO VERNQIT lll'CE WIJLIAMS, ALI, OF Ir'IAlltI,FLORIDA.

ELECTRC ,l/"ATER HEATER.

Application :filed July 25, i924, Serial No. 728,163.

To all whom it may concern.'

Be it known that I, Grenen R, Corzrimbr, a citizen ot the United States,residing at Miami, in the county of Dade and State of Florida, haveinvented certain new and uset'ul Improvements in Electric later Heaters, of which the following is a specification.

This invention relates to water heaters and pertains particularly to theclass ot electric water heaters.

The primary object ot this invention is the provision, in a manner ashereinafter set forth, of an electric water' heater oit improvedconstruction, which is adapted to be placed in the water line to allowthe water to pass therethrough and to heat the same during its passagethrough the heater.

A. still further object of the invention is the provision, in amanner ashereinafter set forth, of an electric heater havin'g an improved heatingunit adapted to be easily and quickly removed from the device in asingle unit without the necessity ot disconnecting the device trom thewater line. or otherwise disassembling the same.

A still further object of the invention is the provision, in a manner ashereinafter set forth, of an electric water heater having a controllingrheostat by means oit which a large current can he turned on to quicklyheat the water or the current can be cut down to a very low point tokeep thc water heated 'for any length of time desired. i

A still further and final object ot the invention is the provision, in amanner Vas hereinafter set forth, of an electric water heater ot simpleconstruction, easily and quickly disassembled -for cleanii-g` orrcplacement oli part-s, oit neat appearance, eilicient, and inexpensiveto manutactiue and install.

The invention will be best understood trom a consideration of thefollowing detailed description taken in connection with the accompanyingdrawing forming a` part of this specitication, with the understandingthat the invention is not conned to any strict conformity with theshowing ot the drawing hut may be changed and modified so long as suchchanges and modifications mark no material departure from the salient'features of the invention as Iexpressed in the appended claim,

In the drawings:

Figure l. is a 'front elevation ot the device embodying this invention.

1Figure 2 is a longitudinal sectional view ot the same.

Figure is a transverse sectional View taken upon the line 3-3 of Figure2, and

Figure t is a transverse sectional view taken upon the line 4 4 ofFigure 2,

Referring now to the drawings in `detail wherein lil-te numerals oitreference indicate corresponding parts throughout the several views, thedevice embodying this' invention comprises a casing l of substantiallength and here shown as circular in cross section, although thisparticular design is not essential and it is to be'understood that thestructure is not conlined to this type ot body. The body l is normallyvertically positioned and has peripheral threads 2 at its lower end andis internally threaded as at 3 at its upper end.. The lowerv end ot thebody l is closed by the bottom cap which has the upstanding annularportion 5 interiorly threaded to engage the peripheral threads 2 ct thebody and the underside ot the can is drawn or tapered at (i to theinteriorly threaded depending outlet nipple this nipple one end ot aninlet water pipe S is adapted to be threaded. i

Att the upper end oit the body l there is located the head portionindicatedv as a whole hy the numeral 9. This head if? is oi greaterdiameter than the body l as shown, and the lower portion thereoi1 isdrawn in wardlvas at l0 to providetl'lelronstricted -lower terminalportion ll wh'icli' is exteriorly threaded and adapted to engage in theinteriorthreads 3 at the upper end ot the casing l as shown. The upperportion ot the head 9V is interiorly 'hreaded as at 1.3 and further has-Formed about the upper edge thereof the annular iiangeo collar 14,Formed upon the body of the head 9 is a right angular extension l5through which a threaded aperture is formed, and also through the bodyinto the interior oit the head, and into this threaded aperture one endof a. water outlet pipe 16 is adapted to be threaded.

Fitted into the upper end of the head 9 is a heating unit supportindicated as a Whole by the numeral 17,. @this heating unit,

7u vliuto vwhen the saineis threaded :support comprises a lowerinteriorly and exteriorly threaded sleeve 18 adapted to be threaded intothe upper end ot' the head 9 engaging the threads 13 as shown .in Figure 2, and the upper port-ion ot this sleeve 18 has formed integraltherewith an annular collar 19 which, as shown, is of greater diameterthan the sleeve 18 and overhangs the outer side thereoil to abut the topsnrface ot the annular lla-nge 14 ot' the head.

The interior diameter of this collar 19 is` also greater than theinterior diameter ot' the sleeve 1S.

Threaded into the sleeve 13 from the lower end thereof is a plug otinsulation 2() which plug may be 'termed othard rubber, bakelite, glass,porcelain or any other appropriate insulating material. The lowerport-ion of the plug is ot greater diameter than the body to 'form theannular rim 21 which when'the plug'is tlnieaded into the sleeve'18bearsagainst and binds ae inst the lower end ot the sleeve andinsulating washer 22. The upper end ot the plug 2U, into the sleeve 18,is flush with the upper edge et the Isleeve as shown;

Formed vlongitudinally'through the plug 20'are three apertures throughwhich certain conducting elements are ada )ted to e2;- tend. Positionedwithin the body 1 is Va heating element, `indicated as a. whole by thenumeral 23, consisting ot a'lower transverse or body portion2t'lroinwhichtransverse body portion there extends three tical electrodes 25,26`and 27, respectively, the central electrode 26 being shorter than the1twol electrodes '25 and 27, as sho vn, and having threaded tothereduced portion 28 at the upper end thereof the conductor wire 29,thefupper end'ot which is odset asat 30 and extended upwardly as at 31through one'of the passages through the plug` 20. The upper end oi'ythisconducting wire is threaded'- to receive' thereon a thumb nnt 32'. Theelectrodes 25 and 27extend'tothe underside 'of the'plug 2O and are thenreduced to provide the/reduced conducting elements 33 which' extendthrough 'the Vother two"apertures inthe plug 20, andeach ot theseconductii'ig elements 33 has "its upper end threaded in the mannersimilar to-that of the conductor'element 31A to receive 'thereonsimilarthumb nuts 341A. The heating element 23 may be formed ot some metalothigh resistance'which when'current is :forced therethrough will becomeheated and thereby heat the water which surrounds it,

Secured to the inner side'of the collar 1) is one leg of a bracket 35,the intermediate portion otl which bracket is bent at right angles tothe upper and lower portions to rest upon the top of the collante'V moresteadily hold the bracket' in vertical posi tion.

rlhis bracket supports at its upper end a rheostat. 3G having acontrolling knob 37 and a dial 38 upon its face showing' the low, mediumand high and oli7 points oit the rh'eostat. A lead-in electricalconductor 39 enters the back ot' the rheostat and atter properconnectionv to the interior thereot'the conductor wires et) and leadtherefrom Yfor conf nection to the vbinding posts 31 and33 of theheating element. f

A top can #t1 is litted'over the collar 19 as shown in Figure 2, thiscap'havingsuitable apertures 472 therethrough `forr the" passage Y* ot'the conductor wires` Li() and turtherhaving a cutout portion 43 thereinytoengage about the bracket when in position. In

and 33 should the cap come in eontactwith f these points.

From t-heoregoing description it maybe 90 seenl that a novel-'and veryeliicie'nt electric water heater has been provided which, due

to its simple construction, may' be easi'ly'disassembled, and theheating'unit 'entirely romowed-trom the'water casing without dis- Lconnectingthe casing' tronrthe waterline.

Having thusV described my invention what I claim is z In a water' heaterof the cha 'acter described, a relatively long.' casing having an 100inlet andan outletthrongh* the vsides thereof and closed at one end, aninteriorl'y vand exteriorly threaded 'collar "tl'ire'aded into' theupper end ot said casing, a plug' ot insulation threaded into saidcollar, Va bare electri- 105 cal resistance' elementdepending trom1vsaid plug-into 'said casing for direct Contact with a 'Huid therein, andmeans for conducting an electric current to said elements.

In' testimony whereof, I a'lrizi my signa- 110 ture hereto.'

GEORGE ooNKLiN.l

